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glaze tests, strontium matt and rounded decimals

updated wed 23 may 01

 

Alisa og Claus Clausen on tue 22 may 01


Dear Clayart,
My misunderstanding after collecting the Strontium Matt glazes from =
Chris' site, I thought they were developed by Chris. I must have missed =
on the site information that Pinnell glazes adapted by him from cone 10 =
to Cone 6. Great glazes for decorative. I am glad to be informed by =
2 Clayarters where they originated from Pete Pinnell and were published =
a fews years ago in CM. From now on forward, I will send source only as =
Clayart, sent by.... if I am not 100 precent sure of the author of the =
glaze. Apologies to Pete Pinnell for this miscrediting.
=20
Secondly, when I say I measure all decimals up or down to the nearest =
decimal, I mean over 5 up, under 5 down. For example: 9.2 Ball Clay =
becomes 9.0
9.6 =
Ball Clay becomes 10.0

This is how I do it. =20

OXIDES however, are measured concisely as possible as the precent to the =
given recipe. Since most recipes are measured up to 100 gr. for the =
convience, 3.0 gr. Copper ox. would be 3%. Copper ox. If the reader =
adds up the test recipe, they will find that 9 out of 10 of the test =
posts add up to 100. A recipe adding up to 100 is a convience, not a =
necesity. Tom, if you want to back me up. So, if you make 50 gr. test =
batches, still use 3%, but 3% of 50 or whatever you are mixing.


Hope this clarifies any confusion when I say I round up or down. I mean =
only the glaze materials, and not the colorants that follow after "add".

Best regards,
Alisa

Chris Clarke on wed 23 may 01


I've had those formulas for so long I had lost who they were from. Excuse
my rudeness Mr. Pinnell, I have been remiss in my record keeping. You will
be credited as soon as I can upload the new page. chris


temecula, california
chris@ccpots.com
www.ccpots.com